Question

if 21 is added four times to a number, the result 57. the number is

Answer 1

hope it help you a lot

Answer 2

Answer:

The number is 9.

Step-by-step explanation:

Let the number be x.

Four times the number is 4x.

When 21 is added to four times the number then the number is 4x + 21

According to the question, this should be equal to 57.

Hence, we have the equation

4x + 21 = 57

4x = 57 -21

4x = 36

x=9

Thus, the required number is 9.